./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:59:57,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:59:57,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 20:59:57,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:59:57,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:59:57,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:59:57,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:59:57,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:59:57,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:59:57,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:59:57,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:59:57,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:59:57,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:59:57,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:59:57,902 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:59:57,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:59:57,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:59:57,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:59:57,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:59:57,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:59:57,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:59:57,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:59:57,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:59:57,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:59:57,906 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:59:57,906 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:59:57,906 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:59:57,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:59:57,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:59:57,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:59:57,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:59:57,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:59:57,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:59:57,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:59:57,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:59:57,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:59:57,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:59:57,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:59:57,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:59:57,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:59:57,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:59:57,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:59:57,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:59:57,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:59:57,910 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-10-11 20:59:58,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:59:58,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:59:58,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:59:58,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:59:58,181 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:59:58,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-10-11 20:59:59,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:59:59,658 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:59:59,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-10-11 20:59:59,669 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b5ac0d0dd/c2dbc368e4c948d79e65c1ba8cd20daf/FLAGfb71e9e17 [2024-10-11 20:59:59,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b5ac0d0dd/c2dbc368e4c948d79e65c1ba8cd20daf [2024-10-11 20:59:59,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:59:59,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:59:59,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:59:59,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:59:59,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:59:59,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,702 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc519f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59, skipping insertion in model container [2024-10-11 20:59:59,702 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:59:59,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:59:59,888 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:59:59,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:59:59,918 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:59:59,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59 WrapperNode [2024-10-11 20:59:59,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:59:59,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:59:59,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:59:59,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:59:59,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,952 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-11 20:59:59,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:59:59,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:59:59,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:59:59,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:59:59,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,975 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 20:59:59,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:59:59,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:59:59,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:59:59,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:59:59,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (1/1) ... [2024-10-11 20:59:59,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 21:00:00,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:00,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 21:00:00,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 21:00:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 21:00:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 21:00:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 21:00:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 21:00:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 21:00:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 21:00:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 21:00:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 21:00:00,129 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 21:00:00,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 21:00:00,313 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-10-11 21:00:00,313 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 21:00:00,335 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 21:00:00,335 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 21:00:00,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:00:00 BoogieIcfgContainer [2024-10-11 21:00:00,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 21:00:00,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 21:00:00,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 21:00:00,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 21:00:00,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:59:59" (1/3) ... [2024-10-11 21:00:00,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d82b080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:00:00, skipping insertion in model container [2024-10-11 21:00:00,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:59:59" (2/3) ... [2024-10-11 21:00:00,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d82b080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:00:00, skipping insertion in model container [2024-10-11 21:00:00,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:00:00" (3/3) ... [2024-10-11 21:00:00,344 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2024-10-11 21:00:00,360 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 21:00:00,360 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-11 21:00:00,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 21:00:00,434 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55d01b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 21:00:00,435 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-11 21:00:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 21:00:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 21:00:00,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:00,446 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:00,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:00,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:00,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350132, now seen corresponding path program 1 times [2024-10-11 21:00:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104982471] [2024-10-11 21:00:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:00,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:00,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:00,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104982471] [2024-10-11 21:00:00,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104982471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:00,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:00,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:00:00,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811723858] [2024-10-11 21:00:00,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:00,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 21:00:00,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:00,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 21:00:00,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 21:00:00,708 INFO L87 Difference]: Start difference. First operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:00,742 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-10-11 21:00:00,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 21:00:00,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-11 21:00:00,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:00,754 INFO L225 Difference]: With dead ends: 116 [2024-10-11 21:00:00,754 INFO L226 Difference]: Without dead ends: 56 [2024-10-11 21:00:00,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 21:00:00,761 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:00,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:00:00,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-11 21:00:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-11 21:00:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 21:00:00,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-10-11 21:00:00,799 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2024-10-11 21:00:00,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:00,800 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-10-11 21:00:00,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:00,800 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-10-11 21:00:00,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 21:00:00,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:00,801 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:00,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 21:00:00,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:00,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350117, now seen corresponding path program 1 times [2024-10-11 21:00:00,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:00,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516792708] [2024-10-11 21:00:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:00,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:00,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456242839] [2024-10-11 21:00:00,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:00,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:00,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:00,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:00,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 21:00:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:00,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 21:00:00,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:00,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:00:00,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:00,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516792708] [2024-10-11 21:00:00,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:00,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456242839] [2024-10-11 21:00:00,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456242839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:00,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:00,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 21:00:00,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20899367] [2024-10-11 21:00:00,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:00,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 21:00:00,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:00,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 21:00:00,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:00:00,922 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:01,002 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2024-10-11 21:00:01,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 21:00:01,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-11 21:00:01,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:01,005 INFO L225 Difference]: With dead ends: 90 [2024-10-11 21:00:01,006 INFO L226 Difference]: Without dead ends: 84 [2024-10-11 21:00:01,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 21:00:01,008 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:01,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 73 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-11 21:00:01,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2024-10-11 21:00:01,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.66) internal successors, (83), 69 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 21:00:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2024-10-11 21:00:01,019 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 14 [2024-10-11 21:00:01,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:01,019 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2024-10-11 21:00:01,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2024-10-11 21:00:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 21:00:01,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:01,020 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:01,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:01,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:01,222 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:01,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:01,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1567877597, now seen corresponding path program 1 times [2024-10-11 21:00:01,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:01,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692357022] [2024-10-11 21:00:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:01,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:01,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:01,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:01,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:01,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692357022] [2024-10-11 21:00:01,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692357022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:01,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:01,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:00:01,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265263249] [2024-10-11 21:00:01,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:01,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:00:01,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:00:01,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:01,365 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:01,573 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2024-10-11 21:00:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:00:01,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-10-11 21:00:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:01,576 INFO L225 Difference]: With dead ends: 120 [2024-10-11 21:00:01,578 INFO L226 Difference]: Without dead ends: 113 [2024-10-11 21:00:01,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:01,580 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:01,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 71 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:01,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-11 21:00:01,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2024-10-11 21:00:01,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 81 states have (on average 1.5679012345679013) internal successors, (127), 100 states have internal predecessors, (127), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 21:00:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 139 transitions. [2024-10-11 21:00:01,592 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 139 transitions. Word has length 16 [2024-10-11 21:00:01,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:01,593 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 139 transitions. [2024-10-11 21:00:01,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:01,593 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 139 transitions. [2024-10-11 21:00:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 21:00:01,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:01,593 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:01,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 21:00:01,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:01,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:01,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1359565303, now seen corresponding path program 1 times [2024-10-11 21:00:01,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:01,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984582358] [2024-10-11 21:00:01,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:01,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:01,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:01,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:01,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:01,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984582358] [2024-10-11 21:00:01,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984582358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:01,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:01,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:00:01,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628997143] [2024-10-11 21:00:01,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:01,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:00:01,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:01,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:00:01,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:01,701 INFO L87 Difference]: Start difference. First operand 109 states and 139 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:01,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:01,824 INFO L93 Difference]: Finished difference Result 115 states and 140 transitions. [2024-10-11 21:00:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:00:01,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-11 21:00:01,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:01,826 INFO L225 Difference]: With dead ends: 115 [2024-10-11 21:00:01,827 INFO L226 Difference]: Without dead ends: 106 [2024-10-11 21:00:01,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:01,828 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:01,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 75 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:01,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-11 21:00:01,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-10-11 21:00:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 95 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 21:00:01,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 129 transitions. [2024-10-11 21:00:01,843 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 129 transitions. Word has length 17 [2024-10-11 21:00:01,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:01,846 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 129 transitions. [2024-10-11 21:00:01,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:01,847 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 129 transitions. [2024-10-11 21:00:01,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 21:00:01,847 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:01,847 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:01,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 21:00:01,848 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:01,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:01,848 INFO L85 PathProgramCache]: Analyzing trace with hash -803148513, now seen corresponding path program 1 times [2024-10-11 21:00:01,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:01,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63807758] [2024-10-11 21:00:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:01,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:01,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:02,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:02,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:02,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63807758] [2024-10-11 21:00:02,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63807758] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:02,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440722595] [2024-10-11 21:00:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:02,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:02,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:02,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:02,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 21:00:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:02,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 21:00:02,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:02,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:00:02,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440722595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:02,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:02,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-11 21:00:02,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019303667] [2024-10-11 21:00:02,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:02,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:00:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:02,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:00:02,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:02,214 INFO L87 Difference]: Start difference. First operand 104 states and 129 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:02,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:02,347 INFO L93 Difference]: Finished difference Result 107 states and 133 transitions. [2024-10-11 21:00:02,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:00:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-10-11 21:00:02,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:02,348 INFO L225 Difference]: With dead ends: 107 [2024-10-11 21:00:02,349 INFO L226 Difference]: Without dead ends: 106 [2024-10-11 21:00:02,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:00:02,349 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 72 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:02,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 60 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:02,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-11 21:00:02,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-10-11 21:00:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.5263157894736843) internal successors, (116), 95 states have internal predecessors, (116), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 21:00:02,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2024-10-11 21:00:02,360 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 18 [2024-10-11 21:00:02,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:02,360 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2024-10-11 21:00:02,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:02,361 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2024-10-11 21:00:02,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 21:00:02,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:02,361 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:02,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:02,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:02,566 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:02,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:02,567 INFO L85 PathProgramCache]: Analyzing trace with hash 872199929, now seen corresponding path program 1 times [2024-10-11 21:00:02,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:02,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487271421] [2024-10-11 21:00:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:02,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:02,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125182031] [2024-10-11 21:00:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:02,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:02,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:02,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:02,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 21:00:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:02,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 21:00:02,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:02,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:00:02,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:02,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487271421] [2024-10-11 21:00:02,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:02,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125182031] [2024-10-11 21:00:02,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125182031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:02,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:02,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:00:02,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759097597] [2024-10-11 21:00:02,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:02,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:00:02,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:02,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:00:02,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:02,697 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:02,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:02,790 INFO L93 Difference]: Finished difference Result 105 states and 128 transitions. [2024-10-11 21:00:02,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:00:02,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-11 21:00:02,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:02,792 INFO L225 Difference]: With dead ends: 105 [2024-10-11 21:00:02,792 INFO L226 Difference]: Without dead ends: 104 [2024-10-11 21:00:02,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:00:02,793 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 65 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:02,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 65 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:02,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-11 21:00:02,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-11 21:00:02,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.513157894736842) internal successors, (115), 95 states have internal predecessors, (115), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 21:00:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 127 transitions. [2024-10-11 21:00:02,812 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 127 transitions. Word has length 19 [2024-10-11 21:00:02,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:02,812 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 127 transitions. [2024-10-11 21:00:02,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 21:00:02,812 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 127 transitions. [2024-10-11 21:00:02,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 21:00:02,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:02,817 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:02,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 21:00:03,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:03,019 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:03,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:03,020 INFO L85 PathProgramCache]: Analyzing trace with hash 348287117, now seen corresponding path program 1 times [2024-10-11 21:00:03,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:03,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950858630] [2024-10-11 21:00:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:03,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:03,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:03,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950858630] [2024-10-11 21:00:03,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950858630] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:03,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806911164] [2024-10-11 21:00:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:03,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:03,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:03,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:03,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 21:00:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 21:00:03,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:03,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806911164] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:03,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:03,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-11 21:00:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735058770] [2024-10-11 21:00:03,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:03,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 21:00:03,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:03,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 21:00:03,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:03,326 INFO L87 Difference]: Start difference. First operand 104 states and 127 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:03,419 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2024-10-11 21:00:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 21:00:03,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2024-10-11 21:00:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:03,420 INFO L225 Difference]: With dead ends: 157 [2024-10-11 21:00:03,421 INFO L226 Difference]: Without dead ends: 155 [2024-10-11 21:00:03,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:03,422 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 118 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:03,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 172 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:03,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-11 21:00:03,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2024-10-11 21:00:03,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 115 states have (on average 1.5043478260869565) internal successors, (173), 134 states have internal predecessors, (173), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 21:00:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 189 transitions. [2024-10-11 21:00:03,434 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 189 transitions. Word has length 31 [2024-10-11 21:00:03,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:03,434 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 189 transitions. [2024-10-11 21:00:03,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:03,434 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 189 transitions. [2024-10-11 21:00:03,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-11 21:00:03,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:03,435 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:03,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 21:00:03,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-11 21:00:03,636 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:03,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:03,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2088001174, now seen corresponding path program 1 times [2024-10-11 21:00:03,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:03,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890457292] [2024-10-11 21:00:03,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:03,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:03,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:03,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890457292] [2024-10-11 21:00:03,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890457292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:03,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:03,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:00:03,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972014354] [2024-10-11 21:00:03,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:03,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:00:03,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:03,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:00:03,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:03,697 INFO L87 Difference]: Start difference. First operand 145 states and 189 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:03,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:03,732 INFO L93 Difference]: Finished difference Result 145 states and 189 transitions. [2024-10-11 21:00:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:00:03,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-10-11 21:00:03,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:03,734 INFO L225 Difference]: With dead ends: 145 [2024-10-11 21:00:03,734 INFO L226 Difference]: Without dead ends: 143 [2024-10-11 21:00:03,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 21:00:03,734 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:03,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 69 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:00:03,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-11 21:00:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-11 21:00:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 115 states have (on average 1.4608695652173913) internal successors, (168), 132 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 21:00:03,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 184 transitions. [2024-10-11 21:00:03,750 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 184 transitions. Word has length 32 [2024-10-11 21:00:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:03,751 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 184 transitions. [2024-10-11 21:00:03,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 184 transitions. [2024-10-11 21:00:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 21:00:03,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:03,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:03,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 21:00:03,752 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:03,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1400336030, now seen corresponding path program 1 times [2024-10-11 21:00:03,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:03,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350803820] [2024-10-11 21:00:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:03,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:03,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865737061] [2024-10-11 21:00:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:03,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:03,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:03,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:03,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 21:00:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:03,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 21:00:03,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:03,943 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:04,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:04,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350803820] [2024-10-11 21:00:04,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:04,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865737061] [2024-10-11 21:00:04,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865737061] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:04,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:04,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-11 21:00:04,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428865892] [2024-10-11 21:00:04,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:04,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:00:04,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:04,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:00:04,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:04,131 INFO L87 Difference]: Start difference. First operand 143 states and 184 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:04,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:04,244 INFO L93 Difference]: Finished difference Result 150 states and 187 transitions. [2024-10-11 21:00:04,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 21:00:04,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-10-11 21:00:04,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:04,246 INFO L225 Difference]: With dead ends: 150 [2024-10-11 21:00:04,246 INFO L226 Difference]: Without dead ends: 143 [2024-10-11 21:00:04,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:00:04,248 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:04,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 65 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:04,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-11 21:00:04,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2024-10-11 21:00:04,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 128 states have internal predecessors, (156), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 21:00:04,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2024-10-11 21:00:04,257 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 34 [2024-10-11 21:00:04,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:04,258 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2024-10-11 21:00:04,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2024-10-11 21:00:04,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 21:00:04,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:04,259 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:04,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:04,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:04,460 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:04,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:04,460 INFO L85 PathProgramCache]: Analyzing trace with hash -460743922, now seen corresponding path program 1 times [2024-10-11 21:00:04,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:04,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156299257] [2024-10-11 21:00:04,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:04,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:04,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246038772] [2024-10-11 21:00:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:04,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:04,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:04,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:04,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 21:00:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:04,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 21:00:04,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:04,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:04,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156299257] [2024-10-11 21:00:04,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:04,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246038772] [2024-10-11 21:00:04,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246038772] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:04,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:04,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-11 21:00:04,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888955541] [2024-10-11 21:00:04,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:04,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:00:04,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:04,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:00:04,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:04,999 INFO L87 Difference]: Start difference. First operand 139 states and 172 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:05,153 INFO L93 Difference]: Finished difference Result 187 states and 230 transitions. [2024-10-11 21:00:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:00:05,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-10-11 21:00:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:05,155 INFO L225 Difference]: With dead ends: 187 [2024-10-11 21:00:05,155 INFO L226 Difference]: Without dead ends: 184 [2024-10-11 21:00:05,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:05,156 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 74 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:05,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 92 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-11 21:00:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2024-10-11 21:00:05,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 151 states have (on average 1.3311258278145695) internal successors, (201), 163 states have internal predecessors, (201), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 21:00:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2024-10-11 21:00:05,167 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 35 [2024-10-11 21:00:05,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:05,167 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2024-10-11 21:00:05,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:05,167 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2024-10-11 21:00:05,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-11 21:00:05,169 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:05,169 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:05,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 21:00:05,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 21:00:05,370 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:05,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:05,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1463971986, now seen corresponding path program 1 times [2024-10-11 21:00:05,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:05,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21157255] [2024-10-11 21:00:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:05,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:05,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:05,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21157255] [2024-10-11 21:00:05,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21157255] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:05,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298377691] [2024-10-11 21:00:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:05,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:05,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:05,444 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:05,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 21:00:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:05,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:00:05,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:05,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:00:05,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298377691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:05,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:05,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-11 21:00:05,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812084690] [2024-10-11 21:00:05,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:05,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:00:05,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:05,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:00:05,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:00:05,576 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:05,714 INFO L93 Difference]: Finished difference Result 176 states and 221 transitions. [2024-10-11 21:00:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 21:00:05,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-10-11 21:00:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:05,716 INFO L225 Difference]: With dead ends: 176 [2024-10-11 21:00:05,716 INFO L226 Difference]: Without dead ends: 174 [2024-10-11 21:00:05,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:00:05,717 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:05,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 61 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-11 21:00:05,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2024-10-11 21:00:05,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 148 states have (on average 1.3175675675675675) internal successors, (195), 158 states have internal predecessors, (195), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 21:00:05,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 215 transitions. [2024-10-11 21:00:05,724 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 215 transitions. Word has length 36 [2024-10-11 21:00:05,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:05,724 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-10-11 21:00:05,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:05,725 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 215 transitions. [2024-10-11 21:00:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-11 21:00:05,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:05,725 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:05,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 21:00:05,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:05,926 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:05,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:05,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1861508742, now seen corresponding path program 1 times [2024-10-11 21:00:05,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:05,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953106464] [2024-10-11 21:00:05,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:05,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:06,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:06,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:06,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:06,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:06,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953106464] [2024-10-11 21:00:06,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953106464] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:06,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656846320] [2024-10-11 21:00:06,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:06,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:06,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:06,099 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:06,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 21:00:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:06,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:00:06,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:06,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:06,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656846320] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:06,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:00:06,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-10-11 21:00:06,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701277365] [2024-10-11 21:00:06,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:06,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 21:00:06,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 21:00:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-11 21:00:06,327 INFO L87 Difference]: Start difference. First operand 171 states and 215 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-11 21:00:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:06,789 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2024-10-11 21:00:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 21:00:06,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 37 [2024-10-11 21:00:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:06,791 INFO L225 Difference]: With dead ends: 183 [2024-10-11 21:00:06,791 INFO L226 Difference]: Without dead ends: 168 [2024-10-11 21:00:06,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-10-11 21:00:06,793 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 130 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:06,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 101 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:06,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-11 21:00:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2024-10-11 21:00:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.25) internal successors, (175), 149 states have internal predecessors, (175), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 21:00:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 195 transitions. [2024-10-11 21:00:06,803 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 195 transitions. Word has length 37 [2024-10-11 21:00:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:06,803 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 195 transitions. [2024-10-11 21:00:06,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-11 21:00:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 195 transitions. [2024-10-11 21:00:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 21:00:06,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:06,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:06,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 21:00:07,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 21:00:07,009 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:07,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1872196208, now seen corresponding path program 1 times [2024-10-11 21:00:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:07,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453860404] [2024-10-11 21:00:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:07,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:07,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:07,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453860404] [2024-10-11 21:00:07,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453860404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:00:07,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:00:07,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:00:07,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689329814] [2024-10-11 21:00:07,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:00:07,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:00:07,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:07,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:00:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:07,063 INFO L87 Difference]: Start difference. First operand 162 states and 195 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:07,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:07,175 INFO L93 Difference]: Finished difference Result 163 states and 195 transitions. [2024-10-11 21:00:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:00:07,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-11 21:00:07,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:07,176 INFO L225 Difference]: With dead ends: 163 [2024-10-11 21:00:07,176 INFO L226 Difference]: Without dead ends: 162 [2024-10-11 21:00:07,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:00:07,177 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:07,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-11 21:00:07,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-11 21:00:07,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 149 states have internal predecessors, (171), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 21:00:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 191 transitions. [2024-10-11 21:00:07,185 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 191 transitions. Word has length 38 [2024-10-11 21:00:07,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:07,186 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 191 transitions. [2024-10-11 21:00:07,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:00:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 191 transitions. [2024-10-11 21:00:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 21:00:07,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:07,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:07,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 21:00:07,187 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:07,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:07,187 INFO L85 PathProgramCache]: Analyzing trace with hash 693347430, now seen corresponding path program 1 times [2024-10-11 21:00:07,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:07,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952677375] [2024-10-11 21:00:07,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:07,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:07,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:07,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952677375] [2024-10-11 21:00:07,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952677375] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:07,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149044231] [2024-10-11 21:00:07,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:07,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:07,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:07,344 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:07,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 21:00:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:07,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:00:07,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:07,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:07,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 21:00:07,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149044231] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:07,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:07,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-11 21:00:07,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023899661] [2024-10-11 21:00:07,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:07,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 21:00:07,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:07,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 21:00:07,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:00:07,855 INFO L87 Difference]: Start difference. First operand 162 states and 191 transitions. Second operand has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 21:00:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:08,235 INFO L93 Difference]: Finished difference Result 163 states and 191 transitions. [2024-10-11 21:00:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 21:00:08,236 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-10-11 21:00:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:08,237 INFO L225 Difference]: With dead ends: 163 [2024-10-11 21:00:08,237 INFO L226 Difference]: Without dead ends: 160 [2024-10-11 21:00:08,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-10-11 21:00:08,238 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 121 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:08,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 131 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-10-11 21:00:08,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 137. [2024-10-11 21:00:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 119 states have (on average 1.1932773109243697) internal successors, (142), 125 states have internal predecessors, (142), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 21:00:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2024-10-11 21:00:08,245 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 38 [2024-10-11 21:00:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:08,245 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2024-10-11 21:00:08,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-11 21:00:08,246 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2024-10-11 21:00:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 21:00:08,246 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:08,246 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:08,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 21:00:08,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:08,447 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:08,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 18933906, now seen corresponding path program 1 times [2024-10-11 21:00:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:08,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319569570] [2024-10-11 21:00:08,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:08,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:08,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462516868] [2024-10-11 21:00:08,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:08,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:08,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:08,457 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:08,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 21:00:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:08,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:00:08,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:08,640 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:08,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:00:08,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:08,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319569570] [2024-10-11 21:00:08,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:08,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462516868] [2024-10-11 21:00:08,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462516868] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:08,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:00:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-11 21:00:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614954947] [2024-10-11 21:00:08,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:08,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 21:00:08,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:08,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 21:00:08,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:08,746 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 21:00:08,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:08,985 INFO L93 Difference]: Finished difference Result 219 states and 257 transitions. [2024-10-11 21:00:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 21:00:08,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-10-11 21:00:08,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:08,987 INFO L225 Difference]: With dead ends: 219 [2024-10-11 21:00:08,987 INFO L226 Difference]: Without dead ends: 152 [2024-10-11 21:00:08,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-11 21:00:08,988 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:08,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 94 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:08,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-11 21:00:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-10-11 21:00:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 134 states have (on average 1.1417910447761195) internal successors, (153), 139 states have internal predecessors, (153), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 21:00:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2024-10-11 21:00:08,996 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 39 [2024-10-11 21:00:08,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:08,996 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2024-10-11 21:00:08,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-11 21:00:08,997 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2024-10-11 21:00:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 21:00:08,997 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:08,997 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:09,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 21:00:09,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 21:00:09,202 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:09,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:09,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1565427033, now seen corresponding path program 2 times [2024-10-11 21:00:09,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:09,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814691639] [2024-10-11 21:00:09,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:09,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:09,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994207373] [2024-10-11 21:00:09,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:09,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:09,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:09,213 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:09,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 21:00:09,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:09,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:09,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:00:09,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 21:00:09,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:09,655 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 21:00:09,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:09,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814691639] [2024-10-11 21:00:09,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:09,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994207373] [2024-10-11 21:00:09,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994207373] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:09,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:00:09,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-11 21:00:09,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326124823] [2024-10-11 21:00:09,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:09,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:00:09,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:00:09,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:00:09,657 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:10,307 INFO L93 Difference]: Finished difference Result 311 states and 365 transitions. [2024-10-11 21:00:10,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 21:00:10,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 55 [2024-10-11 21:00:10,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:10,310 INFO L225 Difference]: With dead ends: 311 [2024-10-11 21:00:10,310 INFO L226 Difference]: Without dead ends: 300 [2024-10-11 21:00:10,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-10-11 21:00:10,311 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:10,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 224 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 21:00:10,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-11 21:00:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 294. [2024-10-11 21:00:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 269 states have (on average 1.1449814126394051) internal successors, (308), 273 states have internal predecessors, (308), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-11 21:00:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 344 transitions. [2024-10-11 21:00:10,331 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 344 transitions. Word has length 55 [2024-10-11 21:00:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:10,331 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 344 transitions. [2024-10-11 21:00:10,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 344 transitions. [2024-10-11 21:00:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 21:00:10,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:10,332 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:10,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 21:00:10,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 21:00:10,533 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:10,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2133780327, now seen corresponding path program 1 times [2024-10-11 21:00:10,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:10,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723413603] [2024-10-11 21:00:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:10,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 21:00:10,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:10,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723413603] [2024-10-11 21:00:10,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723413603] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:10,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540857791] [2024-10-11 21:00:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:10,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:10,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:10,619 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:10,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 21:00:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:10,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:00:10,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 21:00:10,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 21:00:10,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540857791] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:10,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:10,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-10-11 21:00:10,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893874453] [2024-10-11 21:00:10,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:10,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 21:00:10,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:10,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 21:00:10,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:10,787 INFO L87 Difference]: Start difference. First operand 294 states and 344 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:10,909 INFO L93 Difference]: Finished difference Result 818 states and 1019 transitions. [2024-10-11 21:00:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:00:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 67 [2024-10-11 21:00:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:10,912 INFO L225 Difference]: With dead ends: 818 [2024-10-11 21:00:10,913 INFO L226 Difference]: Without dead ends: 816 [2024-10-11 21:00:10,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:10,914 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:10,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 121 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-10-11 21:00:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2024-10-11 21:00:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 758 states have (on average 1.1174142480211082) internal successors, (847), 761 states have internal predecessors, (847), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-11 21:00:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 951 transitions. [2024-10-11 21:00:10,955 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 951 transitions. Word has length 67 [2024-10-11 21:00:10,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:10,956 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 951 transitions. [2024-10-11 21:00:10,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 951 transitions. [2024-10-11 21:00:10,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 21:00:10,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:10,957 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:10,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:11,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 21:00:11,158 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:11,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash -385233554, now seen corresponding path program 1 times [2024-10-11 21:00:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:11,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210700831] [2024-10-11 21:00:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:11,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:11,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:11,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:11,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:11,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:11,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 21:00:11,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:11,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210700831] [2024-10-11 21:00:11,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210700831] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:11,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609514981] [2024-10-11 21:00:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:11,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:11,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:11,301 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:11,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 21:00:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:11,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 21:00:11,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-11 21:00:11,519 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-11 21:00:11,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609514981] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:11,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:11,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-10-11 21:00:11,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713598617] [2024-10-11 21:00:11,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:11,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 21:00:11,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 21:00:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-10-11 21:00:11,709 INFO L87 Difference]: Start difference. First operand 816 states and 951 transitions. Second operand has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-10-11 21:00:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:12,522 INFO L93 Difference]: Finished difference Result 828 states and 963 transitions. [2024-10-11 21:00:12,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-10-11 21:00:12,522 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 77 [2024-10-11 21:00:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:12,525 INFO L225 Difference]: With dead ends: 828 [2024-10-11 21:00:12,525 INFO L226 Difference]: Without dead ends: 827 [2024-10-11 21:00:12,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 145 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=675, Invalid=2187, Unknown=0, NotChecked=0, Total=2862 [2024-10-11 21:00:12,527 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 197 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:12,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 155 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:12,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-10-11 21:00:12,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 815. [2024-10-11 21:00:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 758 states have (on average 1.0699208443271768) internal successors, (811), 760 states have internal predecessors, (811), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-11 21:00:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 915 transitions. [2024-10-11 21:00:12,559 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 915 transitions. Word has length 77 [2024-10-11 21:00:12,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:12,560 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 915 transitions. [2024-10-11 21:00:12,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-10-11 21:00:12,560 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 915 transitions. [2024-10-11 21:00:12,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 21:00:12,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:12,561 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:12,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 21:00:12,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 21:00:12,762 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:12,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:12,762 INFO L85 PathProgramCache]: Analyzing trace with hash -647130915, now seen corresponding path program 1 times [2024-10-11 21:00:12,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:12,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712017610] [2024-10-11 21:00:12,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:12,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:00:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 21:00:12,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:12,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712017610] [2024-10-11 21:00:12,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712017610] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:12,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035209450] [2024-10-11 21:00:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:12,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:12,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:12,826 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:12,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 21:00:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:12,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:00:12,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 21:00:12,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 21:00:13,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035209450] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:13,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:13,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-10-11 21:00:13,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714501916] [2024-10-11 21:00:13,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:13,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:00:13,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:13,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:00:13,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:00:13,007 INFO L87 Difference]: Start difference. First operand 815 states and 915 transitions. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-11 21:00:13,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:13,329 INFO L93 Difference]: Finished difference Result 1517 states and 1701 transitions. [2024-10-11 21:00:13,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 21:00:13,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 90 [2024-10-11 21:00:13,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:13,336 INFO L225 Difference]: With dead ends: 1517 [2024-10-11 21:00:13,336 INFO L226 Difference]: Without dead ends: 1277 [2024-10-11 21:00:13,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 183 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:00:13,340 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 80 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:13,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 210 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:13,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-10-11 21:00:13,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 986. [2024-10-11 21:00:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 919 states have (on average 1.0674646354733406) internal successors, (981), 921 states have internal predecessors, (981), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-11 21:00:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1105 transitions. [2024-10-11 21:00:13,395 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1105 transitions. Word has length 90 [2024-10-11 21:00:13,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:13,395 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1105 transitions. [2024-10-11 21:00:13,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-11 21:00:13,395 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1105 transitions. [2024-10-11 21:00:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 21:00:13,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:13,396 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:13,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:13,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:13,597 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:13,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:13,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1602868179, now seen corresponding path program 1 times [2024-10-11 21:00:13,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:13,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336324229] [2024-10-11 21:00:13,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:13,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:00:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 21:00:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336324229] [2024-10-11 21:00:13,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336324229] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232919849] [2024-10-11 21:00:13,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:13,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:13,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:13,688 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:13,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 21:00:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:13,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 21:00:13,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 21:00:13,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:13,884 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 21:00:13,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232919849] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:13,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:13,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 21:00:13,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024539608] [2024-10-11 21:00:13,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:13,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 21:00:13,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 21:00:13,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:13,887 INFO L87 Difference]: Start difference. First operand 986 states and 1105 transitions. Second operand has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:14,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:14,053 INFO L93 Difference]: Finished difference Result 1593 states and 1789 transitions. [2024-10-11 21:00:14,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 21:00:14,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 90 [2024-10-11 21:00:14,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:14,059 INFO L225 Difference]: With dead ends: 1593 [2024-10-11 21:00:14,059 INFO L226 Difference]: Without dead ends: 1592 [2024-10-11 21:00:14,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:14,061 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 88 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:14,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 183 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:14,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2024-10-11 21:00:14,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1584. [2024-10-11 21:00:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1479 states have (on average 1.066260987153482) internal successors, (1577), 1481 states have internal predecessors, (1577), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-10-11 21:00:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1777 transitions. [2024-10-11 21:00:14,130 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1777 transitions. Word has length 90 [2024-10-11 21:00:14,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:14,130 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 1777 transitions. [2024-10-11 21:00:14,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1777 transitions. [2024-10-11 21:00:14,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-11 21:00:14,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:14,131 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:14,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:14,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:14,332 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:14,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash -321833708, now seen corresponding path program 1 times [2024-10-11 21:00:14,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:14,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2818702] [2024-10-11 21:00:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:14,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:00:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:00:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 21:00:14,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:14,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2818702] [2024-10-11 21:00:14,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2818702] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:14,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574566574] [2024-10-11 21:00:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:14,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:14,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:14,470 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:14,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 21:00:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:14,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 21:00:14,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 21:00:14,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 21:00:14,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574566574] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:14,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-10-11 21:00:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788954982] [2024-10-11 21:00:14,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:14,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 21:00:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:14,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 21:00:14,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 21:00:14,772 INFO L87 Difference]: Start difference. First operand 1584 states and 1777 transitions. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:15,098 INFO L93 Difference]: Finished difference Result 3498 states and 3921 transitions. [2024-10-11 21:00:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 21:00:15,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 115 [2024-10-11 21:00:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:15,107 INFO L225 Difference]: With dead ends: 3498 [2024-10-11 21:00:15,108 INFO L226 Difference]: Without dead ends: 2594 [2024-10-11 21:00:15,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-11 21:00:15,109 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 30 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:15,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 380 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:15,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2024-10-11 21:00:15,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 1881. [2024-10-11 21:00:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1758 states have (on average 1.0591581342434584) internal successors, (1862), 1760 states have internal predecessors, (1862), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-10-11 21:00:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2098 transitions. [2024-10-11 21:00:15,196 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2098 transitions. Word has length 115 [2024-10-11 21:00:15,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:15,196 INFO L471 AbstractCegarLoop]: Abstraction has 1881 states and 2098 transitions. [2024-10-11 21:00:15,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 21:00:15,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2098 transitions. [2024-10-11 21:00:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-11 21:00:15,198 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:15,198 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:15,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-11 21:00:15,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-11 21:00:15,399 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:15,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash -897409821, now seen corresponding path program 2 times [2024-10-11 21:00:15,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:15,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889470872] [2024-10-11 21:00:15,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:15,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:15,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466746192] [2024-10-11 21:00:15,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:15,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:15,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:15,423 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:15,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 21:00:15,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:15,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:15,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:00:15,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-11 21:00:15,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:16,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:16,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889470872] [2024-10-11 21:00:16,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:16,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466746192] [2024-10-11 21:00:16,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466746192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:16,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:16,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-11 21:00:16,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627115800] [2024-10-11 21:00:16,342 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:16,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 21:00:16,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:16,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 21:00:16,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 21:00:16,343 INFO L87 Difference]: Start difference. First operand 1881 states and 2098 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:16,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:16,545 INFO L93 Difference]: Finished difference Result 2108 states and 2347 transitions. [2024-10-11 21:00:16,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:00:16,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 135 [2024-10-11 21:00:16,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:16,553 INFO L225 Difference]: With dead ends: 2108 [2024-10-11 21:00:16,554 INFO L226 Difference]: Without dead ends: 2107 [2024-10-11 21:00:16,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 21:00:16,556 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:16,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 177 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:16,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2024-10-11 21:00:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1913. [2024-10-11 21:00:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1788 states have (on average 1.058165548098434) internal successors, (1892), 1790 states have internal predecessors, (1892), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-10-11 21:00:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2132 transitions. [2024-10-11 21:00:16,661 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2132 transitions. Word has length 135 [2024-10-11 21:00:16,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:16,661 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2132 transitions. [2024-10-11 21:00:16,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2132 transitions. [2024-10-11 21:00:16,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-11 21:00:16,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:16,664 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:16,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-11 21:00:16,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:16,864 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:16,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash -62504019, now seen corresponding path program 3 times [2024-10-11 21:00:16,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:16,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113761279] [2024-10-11 21:00:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:16,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105409292] [2024-10-11 21:00:16,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:00:16,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:16,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:16,880 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:16,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 21:00:16,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 21:00:16,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:16,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:00:16,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:17,082 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:17,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:17,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:17,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113761279] [2024-10-11 21:00:17,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:17,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105409292] [2024-10-11 21:00:17,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105409292] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:17,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:17,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-11 21:00:17,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849496097] [2024-10-11 21:00:17,518 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:17,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 21:00:17,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:17,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 21:00:17,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:00:17,519 INFO L87 Difference]: Start difference. First operand 1913 states and 2132 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:17,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:17,829 INFO L93 Difference]: Finished difference Result 2961 states and 3296 transitions. [2024-10-11 21:00:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 21:00:17,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 135 [2024-10-11 21:00:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:17,836 INFO L225 Difference]: With dead ends: 2961 [2024-10-11 21:00:17,836 INFO L226 Difference]: Without dead ends: 2096 [2024-10-11 21:00:17,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:00:17,842 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 77 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:17,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 196 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2024-10-11 21:00:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1913. [2024-10-11 21:00:17,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1788 states have (on average 1.0564876957494407) internal successors, (1889), 1790 states have internal predecessors, (1889), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-10-11 21:00:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2129 transitions. [2024-10-11 21:00:17,918 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2129 transitions. Word has length 135 [2024-10-11 21:00:17,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:17,920 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2129 transitions. [2024-10-11 21:00:17,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 21:00:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2129 transitions. [2024-10-11 21:00:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-11 21:00:17,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:17,922 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:17,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:18,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 21:00:18,123 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:18,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:18,123 INFO L85 PathProgramCache]: Analyzing trace with hash 877639691, now seen corresponding path program 3 times [2024-10-11 21:00:18,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:18,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407775972] [2024-10-11 21:00:18,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:18,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:18,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105357712] [2024-10-11 21:00:18,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:00:18,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:18,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:18,148 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:18,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 21:00:18,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-11 21:00:18,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:18,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:00:18,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-11 21:00:18,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:18,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:18,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407775972] [2024-10-11 21:00:18,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:18,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105357712] [2024-10-11 21:00:18,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105357712] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:18,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:18,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-11 21:00:18,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369783167] [2024-10-11 21:00:18,444 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:18,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 21:00:18,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:18,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 21:00:18,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:00:18,444 INFO L87 Difference]: Start difference. First operand 1913 states and 2129 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 21:00:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:18,587 INFO L93 Difference]: Finished difference Result 2483 states and 2762 transitions. [2024-10-11 21:00:18,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:00:18,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2024-10-11 21:00:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:18,593 INFO L225 Difference]: With dead ends: 2483 [2024-10-11 21:00:18,593 INFO L226 Difference]: Without dead ends: 1519 [2024-10-11 21:00:18,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:00:18,595 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:18,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 93 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-10-11 21:00:18,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1518. [2024-10-11 21:00:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1417 states have (on average 1.0515172900494) internal successors, (1490), 1419 states have internal predecessors, (1490), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-11 21:00:18,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1682 transitions. [2024-10-11 21:00:18,652 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1682 transitions. Word has length 135 [2024-10-11 21:00:18,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:18,653 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1682 transitions. [2024-10-11 21:00:18,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 21:00:18,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1682 transitions. [2024-10-11 21:00:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-11 21:00:18,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:18,654 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:18,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:18,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:18,859 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:18,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash -272784989, now seen corresponding path program 2 times [2024-10-11 21:00:18,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245012967] [2024-10-11 21:00:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:18,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:18,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:18,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:18,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:18,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:18,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:00:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:18,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:00:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:19,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 21:00:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:19,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 21:00:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:19,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:19,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245012967] [2024-10-11 21:00:19,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245012967] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:19,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831470821] [2024-10-11 21:00:19,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:19,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:19,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:19,007 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:19,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-11 21:00:19,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:19,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:19,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 21:00:19,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:19,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:19,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831470821] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:19,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:19,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-10-11 21:00:19,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721085545] [2024-10-11 21:00:19,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:19,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 21:00:19,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:19,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 21:00:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:00:19,294 INFO L87 Difference]: Start difference. First operand 1518 states and 1682 transitions. Second operand has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-11 21:00:19,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:19,525 INFO L93 Difference]: Finished difference Result 2799 states and 3202 transitions. [2024-10-11 21:00:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 21:00:19,525 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 147 [2024-10-11 21:00:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:19,534 INFO L225 Difference]: With dead ends: 2799 [2024-10-11 21:00:19,534 INFO L226 Difference]: Without dead ends: 2798 [2024-10-11 21:00:19,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:00:19,536 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:19,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 176 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-10-11 21:00:19,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-10-11 21:00:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2617 states have (on average 1.0584638899503247) internal successors, (2770), 2619 states have internal predecessors, (2770), 176 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-10-11 21:00:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3122 transitions. [2024-10-11 21:00:19,654 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3122 transitions. Word has length 147 [2024-10-11 21:00:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:19,654 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 3122 transitions. [2024-10-11 21:00:19,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-11 21:00:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3122 transitions. [2024-10-11 21:00:19,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-11 21:00:19,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:19,656 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:19,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:19,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 21:00:19,857 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:19,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1350152142, now seen corresponding path program 4 times [2024-10-11 21:00:19,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:19,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062639048] [2024-10-11 21:00:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:19,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:00:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:00:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 21:00:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 21:00:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:20,028 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:20,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:20,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062639048] [2024-10-11 21:00:20,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062639048] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:20,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462197765] [2024-10-11 21:00:20,029 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:00:20,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:20,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:20,030 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:20,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-11 21:00:20,080 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:00:20,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:20,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 21:00:20,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:20,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-11 21:00:20,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462197765] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:20,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:20,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-10-11 21:00:20,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863019792] [2024-10-11 21:00:20,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:20,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 21:00:20,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 21:00:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-11 21:00:20,429 INFO L87 Difference]: Start difference. First operand 2798 states and 3122 transitions. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:00:20,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:20,887 INFO L93 Difference]: Finished difference Result 6157 states and 6882 transitions. [2024-10-11 21:00:20,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 21:00:20,887 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 155 [2024-10-11 21:00:20,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:20,899 INFO L225 Difference]: With dead ends: 6157 [2024-10-11 21:00:20,899 INFO L226 Difference]: Without dead ends: 4475 [2024-10-11 21:00:20,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 316 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-10-11 21:00:20,903 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 25 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:20,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 506 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2024-10-11 21:00:21,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 3136. [2024-10-11 21:00:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 2934 states have (on average 1.0541922290388548) internal successors, (3093), 2936 states have internal predecessors, (3093), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2024-10-11 21:00:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 3487 transitions. [2024-10-11 21:00:21,049 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 3487 transitions. Word has length 155 [2024-10-11 21:00:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:21,050 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 3487 transitions. [2024-10-11 21:00:21,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:00:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 3487 transitions. [2024-10-11 21:00:21,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-11 21:00:21,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:21,053 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:21,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-11 21:00:21,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 21:00:21,254 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:21,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:21,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1131873023, now seen corresponding path program 5 times [2024-10-11 21:00:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:21,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623295958] [2024-10-11 21:00:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:21,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:21,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356114288] [2024-10-11 21:00:21,274 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 21:00:21,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:21,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:21,276 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:21,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-11 21:00:21,338 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-10-11 21:00:21,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:21,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-11 21:00:21,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 12 proven. 433 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-10-11 21:00:21,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:22,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:22,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623295958] [2024-10-11 21:00:22,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:22,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356114288] [2024-10-11 21:00:22,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356114288] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:22,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:22,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-10-11 21:00:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071132351] [2024-10-11 21:00:22,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:22,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 21:00:22,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 21:00:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-10-11 21:00:22,161 INFO L87 Difference]: Start difference. First operand 3136 states and 3487 transitions. Second operand has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 21:00:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:22,880 INFO L93 Difference]: Finished difference Result 5299 states and 5897 transitions. [2024-10-11 21:00:22,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 21:00:22,882 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 175 [2024-10-11 21:00:22,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:22,910 INFO L225 Difference]: With dead ends: 5299 [2024-10-11 21:00:22,910 INFO L226 Difference]: Without dead ends: 3442 [2024-10-11 21:00:22,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:00:22,913 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:22,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 502 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 21:00:22,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2024-10-11 21:00:23,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3200. [2024-10-11 21:00:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 2994 states have (on average 1.0531062124248498) internal successors, (3153), 2996 states have internal predecessors, (3153), 201 states have call successors, (201), 2 states have call predecessors, (201), 2 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-10-11 21:00:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 3555 transitions. [2024-10-11 21:00:23,054 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 3555 transitions. Word has length 175 [2024-10-11 21:00:23,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:23,054 INFO L471 AbstractCegarLoop]: Abstraction has 3200 states and 3555 transitions. [2024-10-11 21:00:23,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 21:00:23,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 3555 transitions. [2024-10-11 21:00:23,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-11 21:00:23,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:23,057 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:23,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:23,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 21:00:23,257 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:23,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1708308629, now seen corresponding path program 6 times [2024-10-11 21:00:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:23,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659817751] [2024-10-11 21:00:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:23,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:23,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961999876] [2024-10-11 21:00:23,277 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 21:00:23,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:23,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:23,278 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:23,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-11 21:00:23,342 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-10-11 21:00:23,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:23,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-11 21:00:23,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 24 proven. 404 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-11 21:00:24,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:24,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:24,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659817751] [2024-10-11 21:00:24,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:24,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961999876] [2024-10-11 21:00:24,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961999876] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:24,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-10-11 21:00:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714342168] [2024-10-11 21:00:24,491 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:24,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 21:00:24,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:24,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 21:00:24,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-10-11 21:00:24,492 INFO L87 Difference]: Start difference. First operand 3200 states and 3555 transitions. Second operand has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:25,111 INFO L93 Difference]: Finished difference Result 3701 states and 4112 transitions. [2024-10-11 21:00:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 21:00:25,112 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) Word has length 175 [2024-10-11 21:00:25,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:25,124 INFO L225 Difference]: With dead ends: 3701 [2024-10-11 21:00:25,125 INFO L226 Difference]: Without dead ends: 3699 [2024-10-11 21:00:25,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-10-11 21:00:25,126 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 54 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:25,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 417 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:00:25,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2024-10-11 21:00:25,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3246. [2024-10-11 21:00:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3038 states have (on average 1.0526662277814351) internal successors, (3198), 3040 states have internal predecessors, (3198), 203 states have call successors, (203), 2 states have call predecessors, (203), 2 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-10-11 21:00:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 3604 transitions. [2024-10-11 21:00:25,272 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 3604 transitions. Word has length 175 [2024-10-11 21:00:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:25,272 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 3604 transitions. [2024-10-11 21:00:25,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 3604 transitions. [2024-10-11 21:00:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-11 21:00:25,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:25,275 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:25,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:25,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:25,475 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:25,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1824792118, now seen corresponding path program 2 times [2024-10-11 21:00:25,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:25,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974358778] [2024-10-11 21:00:25,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:25,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:00:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:00:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 21:00:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 21:00:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 21:00:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 21:00:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:25,674 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:25,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:25,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974358778] [2024-10-11 21:00:25,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974358778] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:25,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142226980] [2024-10-11 21:00:25,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:25,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:25,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:25,676 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:25,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-11 21:00:25,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:25,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:25,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 21:00:25,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:25,906 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:26,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142226980] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:26,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:26,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-11 21:00:26,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35208892] [2024-10-11 21:00:26,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:26,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 21:00:26,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 21:00:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:00:26,167 INFO L87 Difference]: Start difference. First operand 3246 states and 3604 transitions. Second operand has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-11 21:00:26,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:26,533 INFO L93 Difference]: Finished difference Result 6615 states and 7374 transitions. [2024-10-11 21:00:26,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 21:00:26,534 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 190 [2024-10-11 21:00:26,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:26,550 INFO L225 Difference]: With dead ends: 6615 [2024-10-11 21:00:26,551 INFO L226 Difference]: Without dead ends: 6614 [2024-10-11 21:00:26,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-11 21:00:26,557 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 257 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:26,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 320 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:00:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6614 states. [2024-10-11 21:00:26,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6614 to 6596. [2024-10-11 21:00:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6596 states, 6178 states have (on average 1.053415344771771) internal successors, (6508), 6180 states have internal predecessors, (6508), 413 states have call successors, (413), 2 states have call predecessors, (413), 2 states have return successors, (413), 413 states have call predecessors, (413), 413 states have call successors, (413) [2024-10-11 21:00:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6596 states to 6596 states and 7334 transitions. [2024-10-11 21:00:26,832 INFO L78 Accepts]: Start accepts. Automaton has 6596 states and 7334 transitions. Word has length 190 [2024-10-11 21:00:26,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:26,833 INFO L471 AbstractCegarLoop]: Abstraction has 6596 states and 7334 transitions. [2024-10-11 21:00:26,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-11 21:00:26,833 INFO L276 IsEmpty]: Start isEmpty. Operand 6596 states and 7334 transitions. [2024-10-11 21:00:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-10-11 21:00:26,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:26,835 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:26,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-10-11 21:00:27,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 21:00:27,036 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:27,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2046102192, now seen corresponding path program 7 times [2024-10-11 21:00:27,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:27,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543015554] [2024-10-11 21:00:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:27,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:00:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:00:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:00:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:00:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:00:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:00:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:00:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 21:00:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 21:00:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 21:00:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 21:00:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:27,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:27,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543015554] [2024-10-11 21:00:27,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543015554] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:27,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146016114] [2024-10-11 21:00:27,267 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 21:00:27,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:27,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:27,268 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:27,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-11 21:00:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:27,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 21:00:27,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:27,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-11 21:00:27,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146016114] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:00:27,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:00:27,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-10-11 21:00:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980713705] [2024-10-11 21:00:27,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:27,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 21:00:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 21:00:27,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-11 21:00:27,822 INFO L87 Difference]: Start difference. First operand 6596 states and 7334 transitions. Second operand has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-11 21:00:28,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:28,533 INFO L93 Difference]: Finished difference Result 14760 states and 16447 transitions. [2024-10-11 21:00:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 21:00:28,534 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 195 [2024-10-11 21:00:28,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:28,554 INFO L225 Difference]: With dead ends: 14760 [2024-10-11 21:00:28,555 INFO L226 Difference]: Without dead ends: 10688 [2024-10-11 21:00:28,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 397 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-10-11 21:00:28,562 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 25 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:28,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 570 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2024-10-11 21:00:28,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 7709. [2024-10-11 21:00:28,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7709 states, 7222 states have (on average 1.048047632234838) internal successors, (7569), 7224 states have internal predecessors, (7569), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2024-10-11 21:00:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7709 states to 7709 states and 8533 transitions. [2024-10-11 21:00:28,941 INFO L78 Accepts]: Start accepts. Automaton has 7709 states and 8533 transitions. Word has length 195 [2024-10-11 21:00:28,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:28,942 INFO L471 AbstractCegarLoop]: Abstraction has 7709 states and 8533 transitions. [2024-10-11 21:00:28,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-11 21:00:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand 7709 states and 8533 transitions. [2024-10-11 21:00:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-10-11 21:00:28,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:28,944 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:28,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:29,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:29,145 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:29,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash -40826342, now seen corresponding path program 8 times [2024-10-11 21:00:29,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:29,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787315203] [2024-10-11 21:00:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:29,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:29,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036254192] [2024-10-11 21:00:29,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:29,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:29,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:29,169 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:29,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-11 21:00:29,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:29,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:29,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 21:00:29,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-10-11 21:00:29,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:34,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787315203] [2024-10-11 21:00:34,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036254192] [2024-10-11 21:00:34,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036254192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:34,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-11 21:00:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714089990] [2024-10-11 21:00:34,163 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:34,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 21:00:34,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:34,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 21:00:34,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=131, Unknown=1, NotChecked=0, Total=182 [2024-10-11 21:00:34,164 INFO L87 Difference]: Start difference. First operand 7709 states and 8533 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-11 21:00:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:34,703 INFO L93 Difference]: Finished difference Result 8316 states and 9200 transitions. [2024-10-11 21:00:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 21:00:34,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 195 [2024-10-11 21:00:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:34,718 INFO L225 Difference]: With dead ends: 8316 [2024-10-11 21:00:34,719 INFO L226 Difference]: Without dead ends: 8315 [2024-10-11 21:00:34,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=50, Invalid=131, Unknown=1, NotChecked=0, Total=182 [2024-10-11 21:00:34,722 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 20 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:34,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 338 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:00:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8315 states. [2024-10-11 21:00:35,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8315 to 8019. [2024-10-11 21:00:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8019 states, 7513 states have (on average 1.0476507387195528) internal successors, (7871), 7515 states have internal predecessors, (7871), 501 states have call successors, (501), 2 states have call predecessors, (501), 2 states have return successors, (501), 501 states have call predecessors, (501), 501 states have call successors, (501) [2024-10-11 21:00:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8019 states to 8019 states and 8873 transitions. [2024-10-11 21:00:35,074 INFO L78 Accepts]: Start accepts. Automaton has 8019 states and 8873 transitions. Word has length 195 [2024-10-11 21:00:35,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:35,075 INFO L471 AbstractCegarLoop]: Abstraction has 8019 states and 8873 transitions. [2024-10-11 21:00:35,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-11 21:00:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 8019 states and 8873 transitions. [2024-10-11 21:00:35,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-11 21:00:35,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:35,077 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:35,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:35,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:35,278 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:35,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash 959833887, now seen corresponding path program 9 times [2024-10-11 21:00:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:35,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379145581] [2024-10-11 21:00:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:35,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:35,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194901000] [2024-10-11 21:00:35,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:00:35,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:35,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:35,298 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:35,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-11 21:00:35,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-11 21:00:35,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:35,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:00:35,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:35,645 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-10-11 21:00:35,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:35,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:35,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379145581] [2024-10-11 21:00:35,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:35,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194901000] [2024-10-11 21:00:35,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194901000] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:35,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:35,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-11 21:00:35,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915101023] [2024-10-11 21:00:35,913 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:35,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 21:00:35,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:35,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 21:00:35,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 21:00:35,914 INFO L87 Difference]: Start difference. First operand 8019 states and 8873 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-11 21:00:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:36,563 INFO L93 Difference]: Finished difference Result 12814 states and 14201 transitions. [2024-10-11 21:00:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 21:00:36,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 215 [2024-10-11 21:00:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:36,577 INFO L225 Difference]: With dead ends: 12814 [2024-10-11 21:00:36,577 INFO L226 Difference]: Without dead ends: 8583 [2024-10-11 21:00:36,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:00:36,584 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 132 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:36,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 453 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:36,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8583 states. [2024-10-11 21:00:36,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8583 to 8106. [2024-10-11 21:00:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8106 states, 7595 states have (on average 1.0471362738643846) internal successors, (7953), 7597 states have internal predecessors, (7953), 506 states have call successors, (506), 2 states have call predecessors, (506), 2 states have return successors, (506), 506 states have call predecessors, (506), 506 states have call successors, (506) [2024-10-11 21:00:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8106 states to 8106 states and 8965 transitions. [2024-10-11 21:00:36,925 INFO L78 Accepts]: Start accepts. Automaton has 8106 states and 8965 transitions. Word has length 215 [2024-10-11 21:00:36,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:36,927 INFO L471 AbstractCegarLoop]: Abstraction has 8106 states and 8965 transitions. [2024-10-11 21:00:36,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-11 21:00:36,927 INFO L276 IsEmpty]: Start isEmpty. Operand 8106 states and 8965 transitions. [2024-10-11 21:00:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-11 21:00:36,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:36,930 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:36,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:37,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:37,130 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:37,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:37,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1476535677, now seen corresponding path program 10 times [2024-10-11 21:00:37,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:37,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393129517] [2024-10-11 21:00:37,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:37,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:37,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342427233] [2024-10-11 21:00:37,148 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:00:37,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:37,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:37,150 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:37,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-11 21:00:37,234 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:00:37,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:37,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 21:00:37,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:37,670 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 12 proven. 602 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-11 21:00:37,670 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:37,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:37,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393129517] [2024-10-11 21:00:37,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:37,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342427233] [2024-10-11 21:00:37,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342427233] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:37,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:37,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-11 21:00:37,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783168] [2024-10-11 21:00:37,925 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:37,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 21:00:37,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:37,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 21:00:37,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-10-11 21:00:37,927 INFO L87 Difference]: Start difference. First operand 8106 states and 8965 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:38,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:38,696 INFO L93 Difference]: Finished difference Result 8796 states and 9725 transitions. [2024-10-11 21:00:38,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 21:00:38,696 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 215 [2024-10-11 21:00:38,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:38,711 INFO L225 Difference]: With dead ends: 8796 [2024-10-11 21:00:38,712 INFO L226 Difference]: Without dead ends: 8795 [2024-10-11 21:00:38,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-10-11 21:00:38,716 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 74 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:38,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 343 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:00:38,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-10-11 21:00:39,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8457. [2024-10-11 21:00:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8457 states, 7924 states have (on average 1.046693589096416) internal successors, (8294), 7926 states have internal predecessors, (8294), 528 states have call successors, (528), 2 states have call predecessors, (528), 2 states have return successors, (528), 528 states have call predecessors, (528), 528 states have call successors, (528) [2024-10-11 21:00:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8457 states to 8457 states and 9350 transitions. [2024-10-11 21:00:39,106 INFO L78 Accepts]: Start accepts. Automaton has 8457 states and 9350 transitions. Word has length 215 [2024-10-11 21:00:39,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:39,106 INFO L471 AbstractCegarLoop]: Abstraction has 8457 states and 9350 transitions. [2024-10-11 21:00:39,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:00:39,107 INFO L276 IsEmpty]: Start isEmpty. Operand 8457 states and 9350 transitions. [2024-10-11 21:00:39,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-11 21:00:39,110 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:39,110 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:39,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:39,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:39,311 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:39,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:39,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1980277955, now seen corresponding path program 11 times [2024-10-11 21:00:39,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:39,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869966649] [2024-10-11 21:00:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:39,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:39,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1253165149] [2024-10-11 21:00:39,335 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 21:00:39,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:39,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:39,338 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:39,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-11 21:00:39,424 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-10-11 21:00:39,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:39,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-11 21:00:39,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 18 proven. 1027 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 21:00:40,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:40,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:40,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869966649] [2024-10-11 21:00:40,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:40,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253165149] [2024-10-11 21:00:40,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253165149] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:40,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:40,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-10-11 21:00:40,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343619352] [2024-10-11 21:00:40,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:40,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 21:00:40,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 21:00:40,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2024-10-11 21:00:40,556 INFO L87 Difference]: Start difference. First operand 8457 states and 9350 transitions. Second operand has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:00:41,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:41,827 INFO L93 Difference]: Finished difference Result 13017 states and 14418 transitions. [2024-10-11 21:00:41,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 21:00:41,832 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 255 [2024-10-11 21:00:41,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:41,845 INFO L225 Difference]: With dead ends: 13017 [2024-10-11 21:00:41,845 INFO L226 Difference]: Without dead ends: 8795 [2024-10-11 21:00:41,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2024-10-11 21:00:41,851 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 23 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:41,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 955 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 21:00:41,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-10-11 21:00:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8477. [2024-10-11 21:00:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8477 states, 7943 states have (on average 1.0465818960090645) internal successors, (8313), 7945 states have internal predecessors, (8313), 529 states have call successors, (529), 2 states have call predecessors, (529), 2 states have return successors, (529), 529 states have call predecessors, (529), 529 states have call successors, (529) [2024-10-11 21:00:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8477 states to 8477 states and 9371 transitions. [2024-10-11 21:00:42,190 INFO L78 Accepts]: Start accepts. Automaton has 8477 states and 9371 transitions. Word has length 255 [2024-10-11 21:00:42,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:42,190 INFO L471 AbstractCegarLoop]: Abstraction has 8477 states and 9371 transitions. [2024-10-11 21:00:42,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:00:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8477 states and 9371 transitions. [2024-10-11 21:00:42,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-11 21:00:42,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:42,194 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:42,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-10-11 21:00:42,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:42,399 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:42,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:42,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1511663367, now seen corresponding path program 12 times [2024-10-11 21:00:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:42,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264708239] [2024-10-11 21:00:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:42,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:42,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077710247] [2024-10-11 21:00:42,431 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 21:00:42,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:42,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:42,436 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:42,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-11 21:00:42,565 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-10-11 21:00:42,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:42,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-11 21:00:42,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 57 proven. 960 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 21:00:44,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:44,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:44,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264708239] [2024-10-11 21:00:44,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:44,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077710247] [2024-10-11 21:00:44,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077710247] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:44,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:44,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-10-11 21:00:44,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810602083] [2024-10-11 21:00:44,641 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:44,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 21:00:44,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:44,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 21:00:44,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 21:00:44,642 INFO L87 Difference]: Start difference. First operand 8477 states and 9371 transitions. Second operand has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-11 21:00:50,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:50,224 INFO L93 Difference]: Finished difference Result 12722 states and 14093 transitions. [2024-10-11 21:00:50,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 21:00:50,224 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 255 [2024-10-11 21:00:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:50,237 INFO L225 Difference]: With dead ends: 12722 [2024-10-11 21:00:50,237 INFO L226 Difference]: Without dead ends: 8714 [2024-10-11 21:00:50,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=344, Invalid=2518, Unknown=0, NotChecked=0, Total=2862 [2024-10-11 21:00:50,245 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 232 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 3762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:50,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 841 Invalid, 3762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-10-11 21:00:50,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8714 states. [2024-10-11 21:00:50,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8714 to 8470. [2024-10-11 21:00:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 7936 states have (on average 1.0463709677419355) internal successors, (8304), 7938 states have internal predecessors, (8304), 529 states have call successors, (529), 2 states have call predecessors, (529), 2 states have return successors, (529), 529 states have call predecessors, (529), 529 states have call successors, (529) [2024-10-11 21:00:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 9362 transitions. [2024-10-11 21:00:50,612 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 9362 transitions. Word has length 255 [2024-10-11 21:00:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:50,613 INFO L471 AbstractCegarLoop]: Abstraction has 8470 states and 9362 transitions. [2024-10-11 21:00:50,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-11 21:00:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 9362 transitions. [2024-10-11 21:00:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-11 21:00:50,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:50,616 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:50,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:50,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,31 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:50,820 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:50,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1673825583, now seen corresponding path program 13 times [2024-10-11 21:00:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58430980] [2024-10-11 21:00:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:50,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663817694] [2024-10-11 21:00:50,845 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 21:00:50,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:50,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:50,846 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:50,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-11 21:00:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:00:50,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-10-11 21:00:50,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:51,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 63 proven. 982 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-10-11 21:00:51,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:00:52,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:00:52,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58430980] [2024-10-11 21:00:52,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:00:52,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663817694] [2024-10-11 21:00:52,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663817694] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:00:52,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:00:52,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-10-11 21:00:52,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944468843] [2024-10-11 21:00:52,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:00:52,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 21:00:52,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:00:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 21:00:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 21:00:52,372 INFO L87 Difference]: Start difference. First operand 8470 states and 9362 transitions. Second operand has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:00:54,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:00:54,356 INFO L93 Difference]: Finished difference Result 13520 states and 14959 transitions. [2024-10-11 21:00:54,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-11 21:00:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 255 [2024-10-11 21:00:54,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:00:54,369 INFO L225 Difference]: With dead ends: 13520 [2024-10-11 21:00:54,369 INFO L226 Difference]: Without dead ends: 8167 [2024-10-11 21:00:54,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=226, Invalid=2530, Unknown=0, NotChecked=0, Total=2756 [2024-10-11 21:00:54,378 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 128 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 5005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:00:54,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1022 Invalid, 5005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 21:00:54,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8167 states. [2024-10-11 21:00:54,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8167 to 7969. [2024-10-11 21:00:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7969 states, 7466 states have (on average 1.0455397803375301) internal successors, (7806), 7468 states have internal predecessors, (7806), 498 states have call successors, (498), 2 states have call predecessors, (498), 2 states have return successors, (498), 498 states have call predecessors, (498), 498 states have call successors, (498) [2024-10-11 21:00:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7969 states to 7969 states and 8802 transitions. [2024-10-11 21:00:54,730 INFO L78 Accepts]: Start accepts. Automaton has 7969 states and 8802 transitions. Word has length 255 [2024-10-11 21:00:54,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:00:54,731 INFO L471 AbstractCegarLoop]: Abstraction has 7969 states and 8802 transitions. [2024-10-11 21:00:54,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-11 21:00:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7969 states and 8802 transitions. [2024-10-11 21:00:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-11 21:00:54,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:00:54,734 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:00:54,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-10-11 21:00:54,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-11 21:00:54,937 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:00:54,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:00:54,938 INFO L85 PathProgramCache]: Analyzing trace with hash 847022693, now seen corresponding path program 14 times [2024-10-11 21:00:54,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:00:54,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35509671] [2024-10-11 21:00:54,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:00:54,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:00:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:00:54,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455093395] [2024-10-11 21:00:54,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:00:54,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:00:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:00:54,967 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:00:54,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-11 21:00:55,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:00:55,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:00:55,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 21:00:55,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:00:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-10-11 21:00:55,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:01:07,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:01:07,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35509671] [2024-10-11 21:01:07,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:01:07,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455093395] [2024-10-11 21:01:07,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455093395] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:07,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:01:07,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-11 21:01:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474976996] [2024-10-11 21:01:07,522 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:01:07,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 21:01:07,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:01:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 21:01:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=250, Unknown=3, NotChecked=0, Total=342 [2024-10-11 21:01:07,523 INFO L87 Difference]: Start difference. First operand 7969 states and 8802 transitions. Second operand has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:01:08,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:01:08,133 INFO L93 Difference]: Finished difference Result 8660 states and 9562 transitions. [2024-10-11 21:01:08,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 21:01:08,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 255 [2024-10-11 21:01:08,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:01:08,149 INFO L225 Difference]: With dead ends: 8660 [2024-10-11 21:01:08,149 INFO L226 Difference]: Without dead ends: 8659 [2024-10-11 21:01:08,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=89, Invalid=250, Unknown=3, NotChecked=0, Total=342 [2024-10-11 21:01:08,152 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 20 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:01:08,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 686 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:01:08,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8659 states. [2024-10-11 21:01:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8659 to 8320. [2024-10-11 21:01:08,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8320 states, 7795 states have (on average 1.045157152020526) internal successors, (8147), 7797 states have internal predecessors, (8147), 520 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) [2024-10-11 21:01:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8320 states to 8320 states and 9187 transitions. [2024-10-11 21:01:08,525 INFO L78 Accepts]: Start accepts. Automaton has 8320 states and 9187 transitions. Word has length 255 [2024-10-11 21:01:08,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:01:08,525 INFO L471 AbstractCegarLoop]: Abstraction has 8320 states and 9187 transitions. [2024-10-11 21:01:08,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-11 21:01:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 8320 states and 9187 transitions. [2024-10-11 21:01:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-10-11 21:01:08,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:01:08,528 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:01:08,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-10-11 21:01:08,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-11 21:01:08,733 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:01:08,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:01:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2050678156, now seen corresponding path program 15 times [2024-10-11 21:01:08,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:01:08,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968127711] [2024-10-11 21:01:08,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:01:08,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:01:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:01:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:01:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:01:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:01:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:01:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:01:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:01:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 21:01:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 21:01:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 21:01:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 21:01:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-11 21:01:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 21:01:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-11 21:01:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 21:01:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 287 proven. 912 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-10-11 21:01:09,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:01:09,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968127711] [2024-10-11 21:01:09,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968127711] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:09,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67067400] [2024-10-11 21:01:09,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:01:09,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:09,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:01:09,036 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:01:09,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-10-11 21:01:09,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-10-11 21:01:09,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:01:09,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-11 21:01:09,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:01:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 0 proven. 887 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2024-10-11 21:01:09,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:01:09,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67067400] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:09,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:01:09,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 25 [2024-10-11 21:01:09,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419822547] [2024-10-11 21:01:09,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 21:01:09,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 21:01:09,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:01:09,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 21:01:09,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2024-10-11 21:01:09,959 INFO L87 Difference]: Start difference. First operand 8320 states and 9187 transitions. Second operand has 25 states, 25 states have (on average 12.8) internal successors, (320), 25 states have internal predecessors, (320), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-10-11 21:01:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:01:11,899 INFO L93 Difference]: Finished difference Result 17623 states and 19521 transitions. [2024-10-11 21:01:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-10-11 21:01:11,899 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.8) internal successors, (320), 25 states have internal predecessors, (320), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 275 [2024-10-11 21:01:11,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:01:11,917 INFO L225 Difference]: With dead ends: 17623 [2024-10-11 21:01:11,917 INFO L226 Difference]: Without dead ends: 13298 [2024-10-11 21:01:11,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=533, Invalid=3889, Unknown=0, NotChecked=0, Total=4422 [2024-10-11 21:01:11,923 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 381 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 3298 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:01:11,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1430 Invalid, 3338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3298 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 21:01:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13298 states. [2024-10-11 21:01:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13298 to 10573. [2024-10-11 21:01:12,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10573 states, 9907 states have (on average 1.037549207630968) internal successors, (10279), 9909 states have internal predecessors, (10279), 661 states have call successors, (661), 2 states have call predecessors, (661), 2 states have return successors, (661), 661 states have call predecessors, (661), 661 states have call successors, (661) [2024-10-11 21:01:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10573 states to 10573 states and 11601 transitions. [2024-10-11 21:01:12,364 INFO L78 Accepts]: Start accepts. Automaton has 10573 states and 11601 transitions. Word has length 275 [2024-10-11 21:01:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:01:12,364 INFO L471 AbstractCegarLoop]: Abstraction has 10573 states and 11601 transitions. [2024-10-11 21:01:12,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.8) internal successors, (320), 25 states have internal predecessors, (320), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-10-11 21:01:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 10573 states and 11601 transitions. [2024-10-11 21:01:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-11 21:01:12,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:01:12,368 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:01:12,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-10-11 21:01:12,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,34 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:12,569 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:01:12,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:01:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash -767862437, now seen corresponding path program 16 times [2024-10-11 21:01:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:01:12,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4573431] [2024-10-11 21:01:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:01:12,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:01:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:01:12,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839263752] [2024-10-11 21:01:12,608 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 21:01:12,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:12,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:01:12,610 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:01:12,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-11 21:01:12,705 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 21:01:12,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:01:12,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-11 21:01:12,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:01:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 21 proven. 1420 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-10-11 21:01:13,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:01:13,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:01:13,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4573431] [2024-10-11 21:01:13,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:01:13,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839263752] [2024-10-11 21:01:13,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839263752] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:13,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:01:13,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-10-11 21:01:13,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397158505] [2024-10-11 21:01:13,992 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:01:13,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 21:01:13,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:01:13,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 21:01:13,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2024-10-11 21:01:13,993 INFO L87 Difference]: Start difference. First operand 10573 states and 11601 transitions. Second operand has 29 states, 28 states have (on average 8.0) internal successors, (224), 29 states have internal predecessors, (224), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-11 21:01:15,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:01:15,537 INFO L93 Difference]: Finished difference Result 10930 states and 11989 transitions. [2024-10-11 21:01:15,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 21:01:15,537 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 8.0) internal successors, (224), 29 states have internal predecessors, (224), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 295 [2024-10-11 21:01:15,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:01:15,547 INFO L225 Difference]: With dead ends: 10930 [2024-10-11 21:01:15,547 INFO L226 Difference]: Without dead ends: 10929 [2024-10-11 21:01:15,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=924, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 21:01:15,548 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 26 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2947 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:01:15,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 914 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2947 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 21:01:15,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2024-10-11 21:01:15,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 10692. [2024-10-11 21:01:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10692 states, 10019 states have (on average 1.0372292643976444) internal successors, (10392), 10021 states have internal predecessors, (10392), 668 states have call successors, (668), 2 states have call predecessors, (668), 2 states have return successors, (668), 668 states have call predecessors, (668), 668 states have call successors, (668) [2024-10-11 21:01:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10692 states to 10692 states and 11728 transitions. [2024-10-11 21:01:15,955 INFO L78 Accepts]: Start accepts. Automaton has 10692 states and 11728 transitions. Word has length 295 [2024-10-11 21:01:15,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:01:15,955 INFO L471 AbstractCegarLoop]: Abstraction has 10692 states and 11728 transitions. [2024-10-11 21:01:15,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 8.0) internal successors, (224), 29 states have internal predecessors, (224), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-11 21:01:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 10692 states and 11728 transitions. [2024-10-11 21:01:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-11 21:01:15,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:01:15,959 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:01:15,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-10-11 21:01:16,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-10-11 21:01:16,159 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:01:16,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:01:16,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1930827955, now seen corresponding path program 17 times [2024-10-11 21:01:16,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:01:16,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537358926] [2024-10-11 21:01:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:01:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:01:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 21:01:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496501549] [2024-10-11 21:01:16,186 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 21:01:16,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:16,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:01:16,187 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:01:16,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-11 21:01:16,286 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-10-11 21:01:16,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:01:16,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 21:01:16,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:01:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-10-11 21:01:16,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:01:21,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:01:21,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537358926] [2024-10-11 21:01:21,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 21:01:21,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496501549] [2024-10-11 21:01:21,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496501549] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:21,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:01:21,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-11 21:01:21,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859645752] [2024-10-11 21:01:21,451 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 21:01:21,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 21:01:21,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:01:21,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 21:01:21,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=289, Unknown=1, NotChecked=0, Total=380 [2024-10-11 21:01:21,452 INFO L87 Difference]: Start difference. First operand 10692 states and 11728 transitions. Second operand has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 21:01:22,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:01:22,137 INFO L93 Difference]: Finished difference Result 11572 states and 12688 transitions. [2024-10-11 21:01:22,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 21:01:22,137 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 295 [2024-10-11 21:01:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:01:22,152 INFO L225 Difference]: With dead ends: 11572 [2024-10-11 21:01:22,153 INFO L226 Difference]: Without dead ends: 11571 [2024-10-11 21:01:22,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=90, Invalid=289, Unknown=1, NotChecked=0, Total=380 [2024-10-11 21:01:22,157 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 22 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:01:22,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 934 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:01:22,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11571 states. [2024-10-11 21:01:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11571 to 11139. [2024-10-11 21:01:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11139 states, 10438 states have (on average 1.0368844606246408) internal successors, (10823), 10440 states have internal predecessors, (10823), 696 states have call successors, (696), 2 states have call predecessors, (696), 2 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2024-10-11 21:01:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11139 states to 11139 states and 12215 transitions. [2024-10-11 21:01:22,643 INFO L78 Accepts]: Start accepts. Automaton has 11139 states and 12215 transitions. Word has length 295 [2024-10-11 21:01:22,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:01:22,644 INFO L471 AbstractCegarLoop]: Abstraction has 11139 states and 12215 transitions. [2024-10-11 21:01:22,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-11 21:01:22,644 INFO L276 IsEmpty]: Start isEmpty. Operand 11139 states and 12215 transitions. [2024-10-11 21:01:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-11 21:01:22,648 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:01:22,648 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:01:22,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-10-11 21:01:22,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-11 21:01:22,850 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:01:22,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:01:22,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2031062555, now seen corresponding path program 3 times [2024-10-11 21:01:22,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:01:22,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273932159] [2024-10-11 21:01:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:01:22,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:01:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:01:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:01:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:01:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:01:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:01:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:01:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:01:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 21:01:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 21:01:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 21:01:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 21:01:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-11 21:01:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 21:01:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-11 21:01:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 21:01:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-11 21:01:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-10-11 21:01:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:23,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-10-11 21:01:23,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:01:23,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273932159] [2024-10-11 21:01:23,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273932159] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:23,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73935440] [2024-10-11 21:01:23,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:01:23,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:23,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:01:23,178 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:01:23,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-10-11 21:01:23,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-10-11 21:01:23,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:01:23,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:01:23,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:01:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-10-11 21:01:23,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:01:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-10-11 21:01:23,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73935440] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:01:23,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:01:23,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-10-11 21:01:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204163457] [2024-10-11 21:01:23,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:01:23,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 21:01:23,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:01:23,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 21:01:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 21:01:23,871 INFO L87 Difference]: Start difference. First operand 11139 states and 12215 transitions. Second operand has 33 states, 32 states have (on average 14.46875) internal successors, (463), 33 states have internal predecessors, (463), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-10-11 21:01:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:01:24,814 INFO L93 Difference]: Finished difference Result 17411 states and 19621 transitions. [2024-10-11 21:01:24,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-11 21:01:24,815 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 14.46875) internal successors, (463), 33 states have internal predecessors, (463), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) Word has length 307 [2024-10-11 21:01:24,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:01:24,837 INFO L225 Difference]: With dead ends: 17411 [2024-10-11 21:01:24,838 INFO L226 Difference]: Without dead ends: 17410 [2024-10-11 21:01:24,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 21:01:24,841 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:01:24,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 291 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:01:24,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17410 states. [2024-10-11 21:01:25,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17410 to 17027. [2024-10-11 21:01:25,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17027 states, 15958 states have (on average 1.0461837322972805) internal successors, (16695), 15960 states have internal predecessors, (16695), 1064 states have call successors, (1064), 2 states have call predecessors, (1064), 2 states have return successors, (1064), 1064 states have call predecessors, (1064), 1064 states have call successors, (1064) [2024-10-11 21:01:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17027 states to 17027 states and 18823 transitions. [2024-10-11 21:01:25,580 INFO L78 Accepts]: Start accepts. Automaton has 17027 states and 18823 transitions. Word has length 307 [2024-10-11 21:01:25,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:01:25,580 INFO L471 AbstractCegarLoop]: Abstraction has 17027 states and 18823 transitions. [2024-10-11 21:01:25,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 14.46875) internal successors, (463), 33 states have internal predecessors, (463), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-10-11 21:01:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand 17027 states and 18823 transitions. [2024-10-11 21:01:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-10-11 21:01:25,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:01:25,584 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:01:25,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-10-11 21:01:25,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:25,785 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-11 21:01:25,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:01:25,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1094573910, now seen corresponding path program 18 times [2024-10-11 21:01:25,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:01:25,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938624030] [2024-10-11 21:01:25,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:01:25,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:01:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 21:01:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 21:01:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 21:01:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 21:01:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:01:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 21:01:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 21:01:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 21:01:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 21:01:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 21:01:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 21:01:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-11 21:01:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 21:01:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-11 21:01:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-11 21:01:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-11 21:01:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-10-11 21:01:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:01:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 387 proven. 1234 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-10-11 21:01:26,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:01:26,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938624030] [2024-10-11 21:01:26,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938624030] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:01:26,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375486850] [2024-10-11 21:01:26,121 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 21:01:26,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:01:26,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:01:26,126 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:01:26,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-10-11 21:01:26,338 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2024-10-11 21:01:26,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:01:26,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 21:01:26,343 INFO L278 TraceCheckSpWp]: Computing forward predicates...